US3477597A - Apparatus and method for opening cans with tear strips - Google Patents
Apparatus and method for opening cans with tear strips Download PDFInfo
- Publication number
- US3477597A US3477597A US578548A US3477597DA US3477597A US 3477597 A US3477597 A US 3477597A US 578548 A US578548 A US 578548A US 3477597D A US3477597D A US 3477597DA US 3477597 A US3477597 A US 3477597A
- Authority
- US
- United States
- Prior art keywords
- frame
- tear strip
- cans
- container
- tear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B7/00—Hand- or power-operated devices for opening closed containers
- B67B7/40—Devices for engaging tags, strips, or tongues for opening by tearing, e.g. slotted keys for opening sardine tins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49789—Obtaining plural product pieces from unitary workpiece
- Y10T29/4979—Breaking through weakened portion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
- Y10T29/49821—Disassembling by altering or destroying work part or connector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53652—Tube and coextensive core
Definitions
- FIG. 2 is a view of the right-hand end of said apparatus.
- FIG. 3 is a top view of said apparatus and a can about to be introduced into the frame.
- 7 FIG. 4 is a top view in partial section of said can in the frame being pierced by the air needle.
- FIG. 5 is a top view in partial section of the can being separated from its contents by the air pressure from said air needle.”
- the apparatus of the instant'invention generally comprises a frame 10 rotatably supported by mounting means 12.
- the mounting means 12 comprises a bracket 16, and hubs 18a and 18b which are rotatably mounted on the gas or air line 24 passing through the bracket 16 and the hubs 18a and"18b.
- the mounting means 12 is made stationary by fixing the bracket 16 to
- This invention relates to an apparatuslan d method for opening cans, and more specifically to a freely rotatable frame and a method for using same to open cans provided with tear strips.
- .It is customary in the processed meat industry to package and ship processed meats in metal cans provided with tear. strips for opening the cans. Frequently the meat is shipped from oneplace to another and must be removed from the cans and processed further before being placed in a suitable condition for sale to the consumer. For example, in slicing processed meats, it is customary to make the meat in loaf form at one plant and ship it to another plant for slicing and retail packaging and distribution. These loaves are usually shipped inlong square metal cans provided with a metal tear strip at one end.
- the tear strip is torn n free and unwound by hand from the 'canleaving a cover or top on the can that is easily removed from the loaf.
- the remaining section of the can is then separated from the loaf by being shaken vigorously by hand.
- a thin layer of gelatin usually exists between the loaf and the can and it acts as a lubricant to facilitate the separation.
- the apparatus and method of the instant invention generally comprises a rotatably mounted frame adapted to fixedly hold a can having a tear strip which is grasped and pulled away from the can to cause the can and the frame to rotate until the tear strip is substantially free of the can permitting the cover to be removed therefrom.
- Another embodiment of the instant invention has the rotably mounted frame in combination with an air needle for piercing the can after being introduced into the frame and for injecting air in the can to separate the can from its contents by the pressure created thereby.
- FIG. 1 is a side view of the apparatus of the instant invention.
- the frame 10 is comprised of thin steel bars 14welded together to form the open box-like configuration depicted in the drawings.
- the frame 10 has the same long, square shaped configuration of the cans to be opened and the dimensions of the frame 10 are slightly in excess of the cans so the cans can be easily inserted therein but yet be close enough for a snug fit to prevent excessive movement during rotation.
- One end of the frame 10 is left open for the passage therein of the cans and the other end is closed with an end plate 20 which is welded thereto and which serves as a base to which the hubs 18a and 18b are fixed to each side by bolts 21..
- the plate 20 has a hole (not shown) in its center to allow for the passage of the air line 24 about which the frame 10 rotates.
- the air line 24 terminates inside the frame 10 and connects to a reducer 26 which communicates with said air line 24.
- the reducer 26 in turn is fixedly connected to a gas or an :air needle 28 and communicates therewith.
- the air needle 28 is along the same axis of rotation as the frame 10 and is provided with a sharp enough point to puncture a can when pressed against the needle 28 by hand.
- the method for opening one of the cans with the ,freely rotatable framell is as follows: First, the ,can 32 enters the can 32.
- the valve 30 totheair'line 24 may be turned on (or can be left on continuously) to permit the air to enter the can 32 and create a pressure therein.
- the tear strip 34 may be grasped and pulled away from the can 32. This causes the frame 10 and can 32 to rotate together and allows the tear strip 34 to be torn free of the can 32 in one quick, continuous movement.
- the can breaks open into a short top section, 32a and a long bottom section, 32b.
- the top section 32a is easily removed from the loaf 36 by hand or may even fall off of its own accord.
- the loaf 36 is then free to be simultaneously pushed out of the bottom section 32b by the force of the air pressure.
- the frame is shorter than the length of the can to provide free access to the tear strip which will project beyond the end of the frame and not be obstructed thereby.
- the invention is not limited to a frame shorter than the can but comprehends a frame of any length that will provide access to the tear strip and not hinder the tear strip from being torn free of the can as described hereinabove.
- the apparatus and method of the instant invention are well suited for large scale commercial processed meat operations where large volumes of cans must be opened for further processing of the meat.
- the invention is not limited to this environment but can be utilized in any setting Where cans having tear strips are to be separated from their contents.
- the method of opening a can having a tear strip comprising the steps of fixedly positioning said can in a freely rotatable holding means, grasping and pulling one end of said tear strip away from said can to cause said can and the means in which it is positioned to rotate in the same direction until said tear strip is substantially free of said can, and removing the cover from said can.
- the method of opening a can having a tear strip and separating said can from its contents comprising the steps of fixedly positioning said can in a freely rotatable holding means, grasping and pulling one end of said tear strip away from said can to cause said can and the means in which it is positioned to rotate in the same direction until said tear strip is substantially free of said can removing the cover from said can, piercing said can and injecting air therein to create pressure, and separating said can from its contents by said pressure.
- a can opening and unloading device according to claim 6 wherein said gas line means is fixedly mounted on said mounting means, said gas line means including gas needle means projecting therefrom into the interior of frame along the rotation axis thereof whereby positioning of said container in said frame results in puncturing one end of said container by said gas needle means, said frame being shorter in length than said container whereby said tear strip projects from one end of said frame.
- a container opening apparatus for opening a container provided with a tear strip, the tear strip being tearable from the container for removing one end thereof, said apparatus comprising: a stationary mounting means adapted to be fixed to a supporting surface, and a rotatable frame rotatably supported on and rotatable relative to said stationary mounting means; said frame including holding means to fixedly receive and hold a container stationary relative to said frame during removal of the tear strip whereby removal of the tear strip results in rotation of said frame and the container in the same direction relative to said stationary mounting means.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57854866A | 1966-09-12 | 1966-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3477597A true US3477597A (en) | 1969-11-11 |
Family
ID=24313342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US578548A Expired - Lifetime US3477597A (en) | 1966-09-12 | 1966-09-12 | Apparatus and method for opening cans with tear strips |
Country Status (1)
Country | Link |
---|---|
US (1) | US3477597A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3893578A (en) * | 1974-04-08 | 1975-07-08 | Southwest Res Inst | System for injecting particulate material into the combustion chamber of a repetitive combustion coating apparatus |
US4418460A (en) * | 1981-08-11 | 1983-12-06 | Ruth Charles N | Method and apparatus for separating a lid from a container |
DE3345951A1 (en) * | 1982-12-23 | 1984-06-28 | The Japan Tobacco & Salt Public Corp., Tokyo | METHOD AND DEVICE FOR UNPACKING PRESSED MATERIAL, IN PARTICULAR TOBACCO LEAVES |
US4872802A (en) * | 1987-06-29 | 1989-10-10 | Abbe Ross E | Apparatus and method for removing the contents of a can |
DE3921356A1 (en) * | 1989-06-29 | 1991-01-03 | Fahr Bucher Gmbh | DEVICE FOR DETACHING THE PACKAGING FILM OF TACKY MEASURES |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US416536A (en) * | 1889-12-03 | Sheet-metal can | ||
US1557610A (en) * | 1922-06-12 | 1925-10-20 | American Can Co | Tear-open can |
US1704234A (en) * | 1922-03-20 | 1929-03-05 | American Can Co | Keyless-tearing-strip container |
US2703187A (en) * | 1953-04-13 | 1955-03-01 | Ernest F Druilhet | Device for operating can opening keys |
US2780387A (en) * | 1954-08-19 | 1957-02-05 | Albert C Hertzfeldt | Key and can support for removing sealing bands from vacuum cans |
US2795344A (en) * | 1954-03-11 | 1957-06-11 | Allbright Nell Co | Apparatus for unloading a coverequipped container with a molded block of meat therein |
US2946470A (en) * | 1959-04-29 | 1960-07-26 | Russer S Inc | Machine for removing covers and contents from container |
US2984375A (en) * | 1960-05-19 | 1961-05-16 | Morrell & Co John | Can opening apparatus |
US3008594A (en) * | 1959-03-02 | 1961-11-14 | Grove Res And Dev Co | Unloading machine for molded food products |
-
1966
- 1966-09-12 US US578548A patent/US3477597A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US416536A (en) * | 1889-12-03 | Sheet-metal can | ||
US1704234A (en) * | 1922-03-20 | 1929-03-05 | American Can Co | Keyless-tearing-strip container |
US1557610A (en) * | 1922-06-12 | 1925-10-20 | American Can Co | Tear-open can |
US2703187A (en) * | 1953-04-13 | 1955-03-01 | Ernest F Druilhet | Device for operating can opening keys |
US2795344A (en) * | 1954-03-11 | 1957-06-11 | Allbright Nell Co | Apparatus for unloading a coverequipped container with a molded block of meat therein |
US2780387A (en) * | 1954-08-19 | 1957-02-05 | Albert C Hertzfeldt | Key and can support for removing sealing bands from vacuum cans |
US3008594A (en) * | 1959-03-02 | 1961-11-14 | Grove Res And Dev Co | Unloading machine for molded food products |
US2946470A (en) * | 1959-04-29 | 1960-07-26 | Russer S Inc | Machine for removing covers and contents from container |
US2984375A (en) * | 1960-05-19 | 1961-05-16 | Morrell & Co John | Can opening apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3893578A (en) * | 1974-04-08 | 1975-07-08 | Southwest Res Inst | System for injecting particulate material into the combustion chamber of a repetitive combustion coating apparatus |
US4418460A (en) * | 1981-08-11 | 1983-12-06 | Ruth Charles N | Method and apparatus for separating a lid from a container |
DE3345951A1 (en) * | 1982-12-23 | 1984-06-28 | The Japan Tobacco & Salt Public Corp., Tokyo | METHOD AND DEVICE FOR UNPACKING PRESSED MATERIAL, IN PARTICULAR TOBACCO LEAVES |
US4872802A (en) * | 1987-06-29 | 1989-10-10 | Abbe Ross E | Apparatus and method for removing the contents of a can |
DE3921356A1 (en) * | 1989-06-29 | 1991-01-03 | Fahr Bucher Gmbh | DEVICE FOR DETACHING THE PACKAGING FILM OF TACKY MEASURES |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ARMOUR FOOD COMPANY,ARIZONA Free format text: SAID ASSIGNOR HEREBY ASSIGNS NUN PRO TUNC AS OF JANUARY 3, 1983,THE ENTIRE INTEREST IN SAID PATENT RIGHTS TO SAID ASSIGNEE;ASSIGNOR:ARMOUR AND COMPANY AN AZ CORP.;REEL/FRAME:004266/0048 Effective date: 19831129 Owner name: G. ARMOUR ARIZONA COMPANY,ARIZONA Free format text: ASSIGNOR HEREBY ASSIGN NUNC PRO TUNC AS OF OCTOBER 1, 1982, THE ENTIRE INTEREST IN SAID PATENT RIGHTS TO SAID ASSIGNEE;ASSIGNOR:GREYHOUND CORPORATON THE;REEL/FRAME:004266/0024 Effective date: 19831129 Owner name: ARMOUR FOOD COMPANY GREYHOUND TOWER, PHOENIX, AZ Free format text: SAID ASSIGNOR HEREBY ASSIGNS NUN PRO TUNC AS OF JANUARY 3, 1983,THE ENTIRE INTEREST IN SAID PATENT RIGHTS TO SAID ASSIGNEE.;ASSIGNOR:ARMOUR AND COMPANY AN AZ CORP.;REEL/FRAME:004266/0048 Effective date: 19831129 Owner name: G. ARMOUR ARIZONA COMPANY GREYHOUND TOWER, PHOENIX Free format text: ASSIGNOR HEREBY ASSIGN NUNC PRO TUNC AS OF OCTOBER 1, 1982, THE ENTIRE INTEREST IN SAID PATENT RIGHTS TO SAID ASSIGNEE;ASSIGNOR:GREYHOUND CORPORATON THE;REEL/FRAME:004266/0024 Effective date: 19831129 Owner name: ARMOUR AND COMPANY Free format text: CHANGE OF NAME;ASSIGNOR:G. ARMOUR ARIZONA COMPANY;REEL/FRAME:004266/0035 Effective date: 19820929 Owner name: GREYHOUND CORPORATION THE Free format text: MERGER;ASSIGNOR:ARMOUR AND COMPANY;REEL/FRAME:004266/0001 Effective date: 19820915 |
|
AS | Assignment |
Owner name: ARMOUR FOOD COMPANY Free format text: CHANGE OF NAME;ASSIGNOR:CAG SUBSIDIARY, INC.;REEL/FRAME:004400/0640 Effective date: 19831213 |
|
AS | Assignment |
Owner name: CAG SUBSIDIARY, INC., CONAGRA CENTER, ONE PARK CEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ARMOUR FOOD COMPANY;REEL/FRAME:004402/0166 Effective date: 19831218 |
|
AS | Assignment |
Owner name: CONAGRA, INC. Free format text: MERGER;ASSIGNOR:ARMOUR FOODS COMPANY;REEL/FRAME:004490/0929 Effective date: 19850523 |